JP3705650B2 - Conveying equipment in the combine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a transport device in a combine equipped with a conveyor for transferring crops such as rice harvested by a mowing unit to a threshing room.
[0002]
[Prior art]
Conventionally, for example, in a general-purpose combine, as described in Japanese Utility Model Publication No. 63-75130, the front and rear rotations are performed between a cutting part provided in front of the machine body and a threshing room provided in the upper part of the machine body. A feeder house that supports the wheel is provided, and in this feeder house, a conveyor that is hung between the front and rear rotating wheels and transferred to the threshing room is transferred between the left and right side walls of the feeder house. A tension body that has a shaft portion that is inserted and supported so as to be freely movable up and down and that tensions the conveyor is provided, and the crop transferred to the threshing chamber is threshed by the rotation of the handling cylinder.
[0003]
[Problems to be solved by the invention]
However, in the transport apparatus configured as described above, a part of the crop transferred by the conveyor may be caught inside the feeder house and accumulated, resulting in clogging.
[0004]
The main object of the present invention is to provide a transport device capable of preventing crops such as cereal grains transferred by a conveyor from being clogged inside a feeder house.
[0005]
[Means for Solving the Problems]
In order to prevent the crops transported by the conveyor from being clogged inside the feeder house while being able to reinforce the tension body support part of the feeder house side wall, as shown in FIG. A feeder house that supports the front and rear rotating wheels between the left and right side walls, and has an insertion hole whose longitudinal direction is up and down on the left and right side walls, and is hung between the rotating wheels and cut by a cutting part In a transport device in a combine having a conveyor for transferring a crop to a threshing chamber, and a shaft portion that is inserted and supported by the respective insertion holes so as to be movable up and down, and a tension body that applies tension to the conveyor, A guide body that extends vertically along the insertion hole and guides the vertical movement of the shaft portion is provided on the outer surface of the left and right side walls and outside the insertion hole.
[0006]
In the invention according to claim 2, as shown in FIG. 3, in order to prevent clogging of a transfer crop due to the insertion hole, while the shaft portion of the tension body can be well guided along the insertion hole, Further, a concealing body that extends vertically along the insertion hole and conceals the opening of the insertion hole is provided.
[0008]
In the invention according to claim 3, the shaft portion penetrates in the radial direction as shown in FIG. 3 so that an appropriate tension force can be easily applied to the tension body at the time of assembly and repair in the factory. A tension coil spring that has a through-hole, and constantly urges the tension body in the tension applying direction; a cylindrical guide shaft that is inserted through each of the tension coil spring and the through-hole; and the left and right side walls. A screw shaft that is attached and inserted through the guide shaft, and a nut that is screwed to the screw shaft, adjusts the force of the tension coil spring, and moves the guide shaft in the axial direction, A display portion for displaying the tension force of the tension body by the tension coil spring is provided on the protrusion portion from which the guide shaft protrudes from the through hole.
[0009]
In the invention according to claim 4, in order to make it possible to easily remove the clogging when the crop to be transferred by the conveyor is caught in the tension body inside the feeder house, as shown in FIG. The feeder house is provided near a tension body supporting position on a side wall of the feeder house, and on the rear rotating wheel side of the tension body, and includes a window hole that opens to the outside and a lid body that opens and closes the window hole. .
[0010]
In order to prevent the transfer crop from entering the inner support shaft portion from the gap between the anti-winding cylinder and the rotating wheel, as shown in FIG. A support shaft that supports the rotating wheel on the feeder house; and a winding prevention tube that is fitted onto the support shaft to prevent the crop from being wound around the support shaft, and includes at least one of the rotating wheels. The side has an annular recess for receiving the end of the anti-winding cylinder, and the end of the anti-winding cylinder is inserted into the annular recess so as to be relatively rotatable. .
[0011]
[Effects of the invention]
In the first aspect of the present invention, the guide body is provided on the left and right side walls of the feeder house along the insertion hole through which the shaft portion of the tension body is inserted, and the guide body is provided on the outer surface of the feeder house side wall. Therefore, it is possible to prevent the crops transferred by the conveyor from being caught on the guide body while reinforcing the tension body support portions on the left and right side walls. Therefore, it is possible to reduce the factor that the transferred crop clogs the support part of the tension body 7, and it is difficult to clog.
[0012]
In the second aspect of the invention, the insertion hole that guides the shaft portion of the tension body up and down is concealed by the concealment body that moves up and down together with the tension body, so that the transfer crop protrudes outward from the insertion holes on the left and right side walls. It can be prevented from hanging. Therefore, it is possible to prevent clogging of the transfer crop by the insertion hole while being able to guide the shaft portion well along the insertion hole.
[0014]
In the invention according to claim 3, since the tension force of the tension body by the tension spring can be confirmed by looking at the display portion of the guide shaft, an appropriate tension force can be easily applied to the tension body during assembly and repair in the factory. Therefore, assembly and repair workability can be improved.
[0015]
In the invention according to claim 4, since the vicinity of the tension body in the feeder house can be opened outward by opening the window hole by operating the lid, the transfer crop is caught on the tension body inside the feeder house. Even in the case of clogging, the clogging can be easily removed from the window hole, and the tension member can be easily cleaned.
[0016]
In the invention of claim 5, since the end of the anti-winding cylinder is inserted into the annular recess of the rotating wheel so as to be relatively rotatable, the transferred crop is a gap between the anti-winding cylinder and the rotating wheel. It is possible to satisfactorily prevent intrusion from the inside. Therefore, it is possible to prevent the transfer crop from entering the inside through the gap between the anti-winding cylinder and the rotating wheel and wrapping around the support shaft.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
12 and 13 show a general-purpose combiner equipped with a transport device. The combine includes a cutting unit 103 that can be moved up and down by a hydraulic lifting device 102 at a front portion of a machine body 100 that is supported so as to be able to travel by left and right traveling devices 101 and 101 that are crawlers, and a grain that is harvested by the cutting unit 103. Along with supporting the conveying device A that conveys crops such as straw to the rear threshing chamber 104, the machine 100 has a spiral handling blade having a propulsion angle on the outer periphery of the fuselage and is conveyed to the threshing chamber 104. A rotatable screw-type handling cylinder 105 for threshing the crop, an oscillation sorting apparatus 106 that can swing before and after sorting the grains threshed by the rotation of the handling cylinder 105, and an oscillation of the oscillation sorting apparatus 106. A grain tank 107 that stores grains that have been subjected to the sorting process is mounted, a driving operation unit 108 that has a driver's seat in front of the grain tank 107, and a drive that includes an engine 109 at the rear. They are placed at the source. In FIG. 12, 110 is a first conveyor arranged below the swing sorting device 106, 111 is a second conveyor, and 112 is an exhaust fan.
[0018]
The mowing unit 103 includes a platform 113 having a header for taking in uncut cereal grains, a cutting blade 114 attached to the front portion of the platform 113 and reciprocating left and right, and rotatably disposed behind the cutting blade 114. And a scraping reel 118 supported on the upper portion of the platform 113 through a reel support 116, 116 and a hydraulic cylinder 117 so as to be movable up and down.
[0019]
The conveying device A is fixedly supported by a substantially rectangular tube-shaped feeder house 1 that is detachably mounted between the rear end portion of the platform 113 of the cutting unit 103 and the front end portion of the machine body 100, and the front portion of the feeder house 1. A cylindrical front rotating wheel (hereinafter referred to as a front rotating wheel) 3 that is rotatably supported via a shaft 2 and a rear portion in the feeder house 1 are rotatably supported via a drive support shaft 4. A pair of transmission chains 61, 61 suspended between the left and right rear rotating wheels (hereinafter referred to as rear rotating wheels) 5, each end of the front rotating wheel 3 and each rear rotating wheel 5, and these A conveyor 6 comprising a large number of conveying pieces 62... Installed between the transmission chains 61, 61, and a tension body 7 for applying tension to the transmission chains 61, 61 of the conveyor 6. -Via a power transmission mechanism such as a chain Wherein in conjunction with the engine 109, so that the conveyor 6 is circulated moved through the rear rotary wheel 5, for transferring the crops were reaped by the reaper 103 threshing chamber 104 Te.
[0020]
1 to 4, the tension body 7 is inserted and supported so as to be movable up and down along the vertical insertion holes 11 formed in the left and right side walls 1 a and 1 a of the feeder house 1. Shaft portion 71, left and right tension wheels 73, 73 that are rotatably supported via a bearing 72 at the longitudinal intermediate portion of the shaft portion 71, and between the tension wheels 73, 73 on the outer periphery of the shaft portion 71. A scraper cylinder 74 fitted over the shaft, and each shaft end portion of a shaft portion 71 projecting outward from the left and right side walls 1a, 1a from the insertion hole 11 and the left and right side walls 1a via brackets 12 downward. A tension coil spring (hereinafter referred to as a tension spring) 8 is provided between the suspended guide shaft 13 and the tension body 7 that constantly urges the tension body 7 upward to apply tension to the transmission chain 61 of the conveyor 6. Further, scrapers 75 and 75 having a substantially triangular cross section extending outward in the length direction beyond the outer edge of the tension ring 73 are provided on the outer surface opposite to the connecting piece described later at each end of the scraper cylinder 74. The crops carried to the non-transfer side of the conveyor 6 by the scrapers 75 and 75 are sequentially dropped to the front of the tension body 7 without being accompanied with the tension wheels 73 and 73.
[0021]
On the outer side surfaces of the left and right side walls 1a, 1a, a guide body 9 is provided that extends vertically along the insertion hole 11 through which the shaft portion 71 of the tension body 7 is inserted, and guides the shaft portion 71 from both front and rear sides. .
[0022]
As shown in FIG. 3, the guide body 9 is composed of two elongated metal plates that are longer than the length of the insertion hole 11, and one side surface of the guide body 9 in the width direction is a surface opposite to the facing surface of the insertion hole 11. A plurality of mounting screws 10 are attached to the outer surface of each side wall 1a so that the shaft portion 71 is guided by the insertion hole 11 and the guide body 9. In addition, each guide body 9 is attached to the left and right side plates 1a and 1a via the elongated receiving body 9a which is thicker and narrower than the guide body 9 at the other end in the width direction. A guide recess 14 extending along the insertion hole 11 is formed between the side portion and the left and right side walls 1a, 1a. The shaft portion 71 may be guided only by the guide body 9, or the guide body 9 may be only one of the front and rear with respect to the insertion hole 11, and the shaft portion 71 may be guided by one guide body 9. Also good.
[0023]
Further, each shaft end portion of the shaft portion 71 protruding outward from the left and right side walls 1a, 1a extends vertically along the insertion hole 11, and conceals the opening of the insertion hole 11 from the outside of the side wall 1a. The cover 15 is inserted and supported.
[0024]
As shown in FIGS. 3 and 5, the concealing body 15 is formed of an elongated plate body having a fitting hole 15 a for receiving the shaft portion 71 at the lower end, and the concealing body 15 is formed in the guide recess 14. It is slidably interposed so that it can move up and down together with the tension body 7.
[0025]
Further, as shown in FIG. 3, the guide shaft 13 includes upper and lower spring receivers 13a and 13b that receive upper and lower ends of the tension spring 8, and a moving shaft portion 13c that passes through the spring receivers 13a and 13b. The moving shaft portion 13c is freely inserted into the lower end side of the screw shaft 16 whose upper end portion is fixed to the bracket 12, and the lower end of the moving shaft portion 13c is screwed to the screw shaft 16. The upper end portion of the moving shaft portion 13c protrudes upward through the shaft portion 71 of the tension member 7 so as to freely move, and the upper end protruding portion of the moving shaft portion 13c has an annular recess. The display part 18 which consists of a groove | channel is provided, and the upper side spring receiver 13a is made to contact | abut to the said axial part 71. FIG. Then, when the nut 17 is turned and operated, the lower spring receiver 13b is moved up and down to adjust the force of the tension spring 8, and when the tension force acting on the tension body 7 becomes appropriate, the moving shaft portion 13c The display unit 18 is exposed from the shaft unit 71.
[0026]
Further, as shown in FIG. 4, annular stays 77 and 78 are inserted and supported on both sides of the tension ring 73 in the shaft portion 71 of the tension body 7 via a key 76, and the outer periphery of the inner stay 77 is The ends of the scraper cylinder 74 are fixed, and the inner and outer stays 77 and 78 are connected by the scraper 75 having a substantially triangular cross section to prevent the stays 77 and 78 from rotating.
[0027]
As shown in FIGS. 2 and 6, an anti-winding cylinder 19 extending between the rear rotating wheels 5 and 5 is fitted around the outer periphery of the drive support shaft 4 so as to be relatively rotatable, and the rear rotating wheel 5 , 5 is provided with an annular recess 51 for receiving the end of the anti-winding cylinder 19 and the end of the anti-winding cylinder 19 is inserted into the inner annular recess 51 so as to be relatively rotatable. .
[0028]
The winding preventing cylinder 19 includes a cylindrical portion 19a and an annular stay 19b that is fixed to the inside of both ends of the cylindrical portion 19a. An outer peripheral end portion of the stay 19b is inserted into the annular recessed portion 51. However, the end portion of the cylindrical portion 19 a may be inserted into the annular recessed portion 51.
[0029]
Further, as shown in FIGS. 2 and 6, the left and right side walls 1 a, 1 a are opposed to the rear rotating wheels 5, 5, as shown in FIGS. A dust-proof cylinder 20 to be inserted into the cylinder and a cylindrical slide bearing 22 that protrudes outward from the side wall 1a and holds the ball bearing 21 are attached, and the slide bearing 22 is rotatably inserted into and supported by the bearing housing 23 to thereby provide a bearing. The housing 23 is detachably attached to the fuselage 100 with mounting screws, and the feeder house 1 can be rotated up and down with respect to the fuselage 100 by the sliding bearing 22, and dust such as soot is rotated by the dust-proof cylinder 20. 5. Intrusion around the outer support shaft 4 is prevented.
[0030]
Further, a support ring 25 is inserted and supported at the center in the length direction of the drive support shaft 4 via a bearing 24, and the center in the length direction of the anti-winding cylinder 19 is fixed to the outer periphery of the support ring 25. On the other hand, connecting pieces 26 and 79 project from the central portion in the length direction of the anti-winding cylinder 19 and the central portion in the length direction of the scraper cylinder 74, respectively. The connecting rod 27 is connected to prevent the winding prevention cylinder 19 from rotating with respect to the drive support shaft 4 and the rear rotating wheel 5 and the scraper cylinder 74 from rotating with respect to the tension wheel 73.
[0031]
One end of the connecting rod 27 is attached to the connecting piece 26 by a mounting screw 28, and the other end is freely rotatable to a connecting piece 79 formed of a cylindrical body extending in the front-rear direction via a U-shaped bracket 79a. And it is slidably inserted in the length direction and connected.
[0032]
As shown in FIG. 3, of the left and right side walls 1 a, 1 a in the feeder house 1, near the tension body support position of the left side wall 1 a opposite to the driving operation unit 108 and on the rear rotating wheel 5 side with respect to the tension body 7. In addition, a rectangular window hole 29 for opening a portion near the connecting portion of the tension body 7 to the connecting rod 27 to the outside and a detachable lid 30 for opening and closing the window hole 29 from the outside of the left side wall 1a are provided. .
[0033]
The lid body 30 is formed in a quadrangle that is larger than the window hole 29, and the attachment screw 31 is screwed into the screw hole formed in the side wall 1a from the insertion hole provided at the four corners thereof, thereby the side wall 1a. The removal of the lid 30 allows the clogging to be easily removed from the window hole 29 even when the transfer crop is caught in the connection portion of the tension body 7 with the connection rod 27. In addition, the tension member 7 can be easily cleaned. In addition, you may provide the window hole 29 and the cover body 30 in both the side walls 1a and 1a.
[0034]
Further, as shown in FIG. 7, a rectangular window hole 32 is formed in the inclined upper wall 1b between the front rotating wheel 3 and the tension body 7 in the feeder house 1, and the window hole 32 is provided from the outside of the upper wall 1b. A removable cleaning lid 33 that opens and closes is provided. In addition, a positioning pin 34 having a large-diameter flange at the upper end protrudes from the rear side of the window hole 32 of the upper wall 1b, and a hook body 35 is provided at the front side of the window hole 32. Yes. In addition, 33a is a handle of the cleaning lid 33.
[0035]
The cleaning lid 33 is formed in a rectangular shape larger than the window hole 32, and a large-diameter hole portion 36a for receiving the large-diameter flange portion of the positioning pin 34, as shown in FIG. A hooking hole 36 comprising a small-diameter hole 36b continuous with the large-diameter hole 36a is provided, and a lever 37a pivoted via a pivotal support shaft 37d and a hooking part 37c are provided at the front end, An operating body 37 is provided which includes a latching body 37b pivotally attached to the lever 37a. When the large-diameter hole portion 36a of the hooking hole 36 is inserted into the positioning pin 34 and the cleaning lid 33 is moved slightly forward, the small-diameter hole portion 36b of the hooking hole 36 is engaged with the positioning pin 34 so that the upper The movement to the front and the side is restricted, and in this state, the cleaning cover 33 can be fixed by hooking the hook portion 37c of the hook body 37b on the hook body 35 and causing the lever 37a to fall down. The lever 37a is raised to disengage the hook portion 35c from the hook body 35, the cleaning lid 33 is slightly moved rearward, and the small diameter hole portion 36b is disengaged from the positioning pin 34, thereby cleaning. The lid 33 can be removed.
[0036]
As shown in FIGS. 1 and 12, a non-slip sheet 38 is attached to the surface of the upper wall 1 c between the rear rotating wheel 5 and the tension body 7 in the feeder house 1, and the upper surface 1 c of the feeder house 1 is attached. This prevents the operator from slipping down even if the operator is placed.
[0037]
On the other hand, as shown in FIG. 9, the cylindrical front rotating wheel 3 is rotatably supported on the support shaft 2 via a bearing 39 and a ring-shaped stay 40, and each end portion of the support shaft 2 is supported. The left and right side walls 1a and 1a of the feeder house 1 are supported via left and right tension arms 41 and 41, respectively. A ring 3 a having a stopper for preventing the displacement of the transmission chain 61 is fixed to the outer periphery of each end of the front rotating wheel 3.
[0038]
The tension arm 41 extends in the front-rear direction, and the middle in the length direction is pivotally supported on the left and right side walls 1a, 1a via a pivot shaft 42 and a collar 43 with a hook. Each end of the support shaft 2 is supported at the front end of the spring, and a spring receiving shaft 45 is provided at the rear end protruding upward through the horizontal shaft 44. The spring receiving shaft and the side wall 1a Between the projecting brackets, a tension spring (not shown) that constantly urges the front rotating wheel 3 downward is interposed, so that the left and right tension arms 41 are operated independently. The tension arm 41 is provided with a mounting hole 41a of the pivot shaft 42 and a counterbore hole 41b continuous to the mounting hole 41a, and the collar 43 is fitted into the counterbore hole 41b. The collar 43 is rotatably inserted and supported by a bearing cylinder 46 fixed to the side wall 1a.
[0039]
In addition, the cutting blade 114 of the embodiment includes a fixed cutting blade 114a and a movable cutting blade 114b that slides on the fixed cutting blade 114a. The fixed cutting blade 114a is shown in FIGS. As shown in FIG. 2, the elongated base body 114c having an inverted L-shaped cross section, a plurality of blade bodies 114d attached to the lower surface of the horizontal piece of the base body 114c at a predetermined interval, and attached to the upper surface of the horizontal piece of the base body 114c The blade pressing plate 114e that holds the blades 114d, and the first pressing member 114e is received by the spacer 114f at one end in the width direction at both ends in the length direction of the blade pressing plate 114e. While being pressed and fixed by 114g, the other end in the width direction is pressed by the second pressing body 114h so as not to move inadvertently.
[0040]
The tension body 7 in the above embodiment includes a cylindrical tension ring 73. In addition, as shown in FIG. 14, a tension ring 73 made of a sprocket is used, and this tension ring 73 is used as the transmission chain 61. The tension ring 73 may be rotated by the transmission power transmitted from the transmission chain 61, and a resistor such as a rubber plate is provided on the outer periphery of the cylindrical tension ring 73 without using a sprocket. The tension ring 73 may be rotated by the contact resistance between the resistor and the transmission chain 61.
[Brief description of the drawings]
FIG. 1 is a vertical side view in which a front side portion of a transport apparatus of the present invention is omitted.
FIG. 2 is a cross-sectional plan view of FIG.
3 is an enlarged side view of a central portion in the front-rear direction of FIG.
4 is a cross-sectional view taken along line XX in FIG.
5 is a cross-sectional view taken along line YY in FIG.
FIG. 6 is an enlarged cross-sectional view of only the rear portion of the transfer device.
FIG. 7 is a longitudinal side view of a front portion of a tension body in a feeder house.
FIG. 8 is a plan view of a Z portion in FIG. 7;
FIG. 9 is a partially longitudinal front view of a front rotating wheel portion.
FIG. 10 is a plan view in which a part of the cutting blade is omitted.
11 is an enlarged sectional view taken along line BB in FIG.
FIG. 12 is a side view of the entire combine incorporating the transport device.
FIG. 13 is a plan view of the entire combine unit incorporating the transfer device.
FIG. 14 is an enlarged sectional view showing another embodiment corresponding to FIG. 9;
DESCRIPTION OF SYMBOLS 1 Feeder house 1a Side wall 2, 4 Support shaft 3 Front rotating wheel 5 Rear rotating wheel 6 Conveyor 7 Tension body 71 Shaft part 8 Tension spring 9 Guide body 11 Insertion hole 13 Guide shaft 15 Concealing body 18 Display part 19 Winding prevention Body 29 window hole 30 lid 51 annular recess

Claims (5)

The front and rear of the rotating wheel and supported between the right and left side walls, are and and Fidahau scan that its longitudinal direction is perforated a through hole which becomes vertically to the left and right side walls, Kake設between the rotating wheels, mowed by reaper and the conveyors to transport the crop to the threshing chamber, has a shaft portion which is vertically movable fitted supported in the insertion hole of the respective conveyor apparatus in combined with a tension member which gives tension to the conveyors in, combine the outside surface of the left side wall, and on the outside of the insertion hole, extending vertically along the insertion hole, characterized in that it provided a guide body for guiding the vertical movement of the shaft portion Conveying device. It said tension member extending vertically along the insertion hole, the conveying apparatus in claim 1, wherein the combine is provided with the concealment member for concealing the mouth opening of the insertion hole. The shaft portion has a through hole penetrating in the radial direction, the tensioning body Neto if always tension coil for biasing the tension applying direction, is inserted into each of I and the through-hole when said tension coil A cylindrical guide shaft, a screw shaft attached to the left and right side walls and inserted through the guide shaft, and screwed to the screw shaft to adjust the force of the tension coil spring, and the guide shaft and a nut for moving the long direction, the the protrusion guide shaft protrudes from the through hole, wherein the tension member claims is provided a display unit for displaying the tension force by the roots if the tension coil 1 or 3. The transport device in the combine according to 2 . The near tensioning member supporting the position of the side walls definitive in Fidahau scan, and the rotation wheel side of the rear against the tension body, according to claim 1 comprising: a window hole opened to the outside, and a lid for opening and closing the said window hole The conveying apparatus in the described combine. A support shaft for supporting the rotary wheel to said feeder house, and a winding preventing sleeve for preventing winding to the support shaft of the crop and fitted around the said support shaft, at least of the rotary wheel one side has an annular recess for receiving an end portion of the anti-tube with the winding, the claims are relatively rotatably fitted to an end portion of the winding prevention tube in the annular recess The conveying apparatus in the combine of 1 .

Images